Home / 28,127.16-42,196.50-9,409.08

Finding the Fourth Proportional to 28,127.16, 42,196.50 and 9,409.08

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Solution

The fourth proportional to 28,127.16, 42,196.50 and 9,409.08 is: 14,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.16 : 42,196.50 = 9,409.08 : x
  2. Step 2: Convert to fraction form
    28,127.16/42,196.50 = 9,409.08/x
  3. Step 3: Cross multiply
    28,127.16x = 42,196.50 × 9,409.08
  4. Step 4: Simplify right side
    28,127.16x = 397,030,244.22
  5. Step 5: Solve for x
    x = 397,030,244.22/28,127.16
  6. Step 6: Final answer
    x = 14,115.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.